APA aipamena

BIG ELEPHANT FOUNDATION. (2012). MIND TWISTER MATHS OLYMPIAD WORKBOOK- 2. BIG ELEPHANT FOUNDATION.

Chicago Style aipamena

BIG ELEPHANT FOUNDATION. MIND TWISTER MATHS OLYMPIAD WORKBOOK- 2. BIG ELEPHANT FOUNDATION, 2012.

MLA aipamena

BIG ELEPHANT FOUNDATION. MIND TWISTER MATHS OLYMPIAD WORKBOOK- 2. BIG ELEPHANT FOUNDATION, 2012.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.